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Blue color from flowers: To make blue dye the Native Americans on the West Coast used the Delphinium flower.
Planting roses:To plant roses which have been obtained from a nursery first water the rose, and then remove it from the pot. If the rose is in a paper pot cut off the bottom and remove the sidewalls so that the fine, new white feeder roots of the growing plant might be preserved. Disadvantage of rose hybrids: Typically new colorful varieties of roses which have been created by hybridization are weaker against diseases.
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